Add to ORKGThe spectral characteristics of HR 2902 are described with special emphasis upon the ultraviolet region. The presence of a rapidly evolving shell is confirmed, which reproduces the shell episode of 1947-48 and agrees well with orbital predictions. The paper in full will be published in “Astronomy and Astrophysics” .Asociación Argentina de Astronomí
During the past years a number of spectra of southern objects have been taken by the authors and the...
The spectra of some thirty Be stars are described, based upon spectrograms obtained at Flagstaff and...
The average spectral energy distribution for a sample of 3200 A. Spectral synthesis indicates that e...
The spectral characteristics of HR 2902 are described with special emphasis upon the ultraviolet reg...
El espectro de recombinación ultravioleta de una envoltura (o corriente) de hidrógeno excitado por l...
Han sido analizados 20 espectros tomados en Córdoba, Sudáfrica y Cerro Tololo, estudiándose las medi...
Se muestran que ciertos criterios de clasificación espectral M-K son sensibles a los efectos de rota...
Hemos obtenido dos placas, en el ultravioleta y en el infrarrojo, de una región de un grado cuadrado...
The study of the series of spectra of Gamma-2 Velorum taken by C. D. Perrine at the Córdoba Observat...
Context. The Nova HR Del, discovered in 1967, was found to be exceptionally bright in the optical an...
This note reports the discovery of a new phosphorus rich star, HR 4817. It is the second object of t...
International audienceContext. The Nova HR Del, discovered in 1967, was found to be exceptionally br...
In part I the behavior of the spectrum between 1908 and 1986 is analysed. The spectral type varied b...
In the peculiar A-type star 73 Draconis the heavy elements Osmium (Z = 76), Platinum (78) , Gold (79...
Spectro-photometric observations of 63 stars of the Orion aggregate have been made. Relative energy ...
During the past years a number of spectra of southern objects have been taken by the authors and the...
The spectra of some thirty Be stars are described, based upon spectrograms obtained at Flagstaff and...
The average spectral energy distribution for a sample of 3200 A. Spectral synthesis indicates that e...
The spectral characteristics of HR 2902 are described with special emphasis upon the ultraviolet reg...
El espectro de recombinación ultravioleta de una envoltura (o corriente) de hidrógeno excitado por l...
Han sido analizados 20 espectros tomados en Córdoba, Sudáfrica y Cerro Tololo, estudiándose las medi...
Se muestran que ciertos criterios de clasificación espectral M-K son sensibles a los efectos de rota...
Hemos obtenido dos placas, en el ultravioleta y en el infrarrojo, de una región de un grado cuadrado...
The study of the series of spectra of Gamma-2 Velorum taken by C. D. Perrine at the Córdoba Observat...
Context. The Nova HR Del, discovered in 1967, was found to be exceptionally bright in the optical an...
This note reports the discovery of a new phosphorus rich star, HR 4817. It is the second object of t...
International audienceContext. The Nova HR Del, discovered in 1967, was found to be exceptionally br...
In part I the behavior of the spectrum between 1908 and 1986 is analysed. The spectral type varied b...
In the peculiar A-type star 73 Draconis the heavy elements Osmium (Z = 76), Platinum (78) , Gold (79...
Spectro-photometric observations of 63 stars of the Orion aggregate have been made. Relative energy ...
During the past years a number of spectra of southern objects have been taken by the authors and the...
The spectra of some thirty Be stars are described, based upon spectrograms obtained at Flagstaff and...
The average spectral energy distribution for a sample of 3200 A. Spectral synthesis indicates that e...